Properties

Label 1521.40
Modulus $1521$
Conductor $1521$
Order $39$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1521, base_ring=CyclotomicField(78))
 
M = H._module
 
chi = DirichletCharacter(H, M([26,6]))
 
pari: [g,chi] = znchar(Mod(40,1521))
 

Basic properties

Modulus: \(1521\)
Conductor: \(1521\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(39\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1521.bl

\(\chi_{1521}(40,\cdot)\) \(\chi_{1521}(79,\cdot)\) \(\chi_{1521}(157,\cdot)\) \(\chi_{1521}(196,\cdot)\) \(\chi_{1521}(274,\cdot)\) \(\chi_{1521}(313,\cdot)\) \(\chi_{1521}(391,\cdot)\) \(\chi_{1521}(430,\cdot)\) \(\chi_{1521}(547,\cdot)\) \(\chi_{1521}(625,\cdot)\) \(\chi_{1521}(664,\cdot)\) \(\chi_{1521}(742,\cdot)\) \(\chi_{1521}(781,\cdot)\) \(\chi_{1521}(859,\cdot)\) \(\chi_{1521}(898,\cdot)\) \(\chi_{1521}(976,\cdot)\) \(\chi_{1521}(1093,\cdot)\) \(\chi_{1521}(1132,\cdot)\) \(\chi_{1521}(1210,\cdot)\) \(\chi_{1521}(1249,\cdot)\) \(\chi_{1521}(1327,\cdot)\) \(\chi_{1521}(1366,\cdot)\) \(\chi_{1521}(1444,\cdot)\) \(\chi_{1521}(1483,\cdot)\)

sage: chi.galois_orbit()
 
order = charorder(g,chi)
 
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 

Related number fields

Field of values: $\Q(\zeta_{39})$
Fixed field: Number field defined by a degree 39 polynomial

Values on generators

\((677,847)\) → \((e\left(\frac{1}{3}\right),e\left(\frac{1}{13}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(7\)\(8\)\(10\)\(11\)\(14\)\(16\)\(17\)
\( \chi_{ 1521 }(40, a) \) \(1\)\(1\)\(e\left(\frac{16}{39}\right)\)\(e\left(\frac{32}{39}\right)\)\(e\left(\frac{14}{39}\right)\)\(e\left(\frac{22}{39}\right)\)\(e\left(\frac{3}{13}\right)\)\(e\left(\frac{10}{13}\right)\)\(e\left(\frac{10}{39}\right)\)\(e\left(\frac{38}{39}\right)\)\(e\left(\frac{25}{39}\right)\)\(e\left(\frac{3}{13}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1521 }(40,a) \;\) at \(\;a = \) e.g. 2